The R3112D351A-TR-FA is a voltage detector IC produced by Ricoh. This IC is designed to monitor voltage levels and provide a reset signal when the voltage drops below a pre-determined threshold. This is crucial for protecting microcontrollers and other sensitive electronic components from operating under undervoltage conditions.

Applications

• Microcontroller reset circuits
• Power supply monitoring
• Battery-powered devices
• Industrial control systems
• Portable electronic devices

Features

• High-accuracy detection voltage: 3.5V
• Low supply current
• Small package size: SOT-23-5
• Built-in hysteresis
• Open drain output
• Wide operating temperature range

Benefits

• Reliable voltage monitoring: The high-accuracy detection voltage ensures precise monitoring of voltage levels, preventing malfunctions due to undervoltage conditions.
• Extended battery life: The low supply current minimizes power consumption, extending the operating life of battery-powered devices.
• Space-saving design: The small package size allows for integration into compact electronic devices.
• Noise immunity: The built-in hysteresis prevents chattering of the reset signal due to noise on the power supply line.
• Flexible system design: The open drain output allows for easy interfacing with various microcontroller and logic circuits.
• Robust operation: The wide operating temperature range ensures reliable performance in various environments.

The R3112D351A-TR-FA has a detection voltage of 3.5V. Its open drain output configuration needs an external pull-up resistor. It is housed in a SOT-23-5 package. The device's low current consumption and small size make it well-suited for applications where space and power are at a premium. The precise voltage detection prevents the system from operating at potentially damaging undervoltage levels, improving overall system reliability.